pyjnius/tests/test_constructor.py

70 lines
2.1 KiB
Python

'''
Test creating an instance of a Java class and fetching its values.
'''
from __future__ import absolute_import
import unittest
from jnius import autoclass, JavaException
class TestConstructor(unittest.TestCase):
'''
TestCase for using constructors with PyJNIus.
'''
def test_constructor_none(self):
'''
Empty constructor, baked value in the .java file.
'''
ConstructorTest = autoclass('org.jnius.ConstructorTest')
inst = ConstructorTest()
self.assertEqual(inst.ret, 753)
self.assertTrue(ConstructorTest.getClass().isInstance(inst))
def test_constructor_int(self):
'''
Constructor expecting int and setting it as public 'ret' property.
'''
ConstructorTest = autoclass('org.jnius.ConstructorTest')
inst = ConstructorTest(123)
self.assertEqual(inst.ret, 123)
self.assertTrue(ConstructorTest.getClass().isInstance(inst))
def test_constructor_string(self):
'''
Constructor expecting char, casting it to int and setting it
as public 'ret' property.
'''
ConstructorTest = autoclass('org.jnius.ConstructorTest')
inst = ConstructorTest('a')
self.assertEqual(inst.ret, ord('a'))
self.assertTrue(ConstructorTest.getClass().isInstance(inst))
def test_constructor_int_string(self):
'''
Constructor expecting int and char, casting char to int and summing it
as public 'ret' property.
'''
ConstructorTest = autoclass('org.jnius.ConstructorTest')
inst = ConstructorTest(3, 'a')
self.assertEqual(inst.ret, 3 + ord('a'))
self.assertTrue(ConstructorTest.getClass().isInstance(inst))
def test_constructor_exception(self):
'''
No such constructor found (no such signature),
should raise JavaException.
'''
ConstructorTest = autoclass('org.jnius.ConstructorTest')
with self.assertRaises(JavaException):
ConstructorTest('1.', 2.0, False)
if __name__ == '__main__':
unittest.main()